IRF630NL N-Channel MOSFET 200V 9.3A TO-262 Equivalent & Substitute Parts

Part Overview

The IRF630NL is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 200V drain-to-source voltage and 9.3A continuous drain current in a Through Hole TO-262 package. This device is part of the HEXFET® series and is classified as Obsolete. Due to its obsolete status and limited availability in new production, identifying equivalent substitute parts is necessary for ongoing system maintenance, repair, and redesign applications where this component is specified.

Substiute Parts

IRF630NL

Infineon TechnologiesIn Stock: 2514IRF630NL Datasheet

Current PartRFQ

RCX120N25

Rohm SemiconductorIn Stock: 3983RCX120N25 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRF630NL are identified based on the following critical electrical and mechanical parameters:

Voltage Rating Compatibility: The substitute must support the application's maximum voltage requirement. The IRF630NL operates at 200V Vdss; substitutes with equal or higher voltage ratings (250V or greater) are acceptable.

Current Rating Compatibility: The substitute must support the application's continuous drain current requirement. The IRF630NL carries 9.3A; substitutes with equal or higher current ratings are acceptable.

On-State Resistance (Rds On): The substitute's Rds On must not significantly exceed the original specification to maintain thermal performance and efficiency characteristics.

Gate Drive Voltage: The substitute must be compatible with the gate drive voltage used in the application (10V nominal for the IRF630NL).

Package and Mounting: The substitute must be available in a Through Hole package compatible with the PCB layout. While the original uses TO-262, functionally equivalent packages such as TO-220FM are acceptable if the application permits physical redesign.

Product Status and Compliance: Active production status and RoHS compliance are preferred for long-term supply chain reliability.

The RCX120N25 from Rohm Semiconductor meets these substitution criteria with a higher voltage rating (250V), higher current rating (12A), compatible gate drive voltage (10V), and active product status with RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The IRF630NL is classified as Obsolete, which creates supply chain risk for new designs and ongoing production. The RCX120N25 is in Active production status, ensuring long-term availability and supply chain stability.

Compliance Status: The IRF630NL is RoHS non-compliant, while the RCX120N25 is RoHS3 compliant. For applications subject to RoHS regulations or customer requirements, the RCX120N25 is the appropriate choice.

Electrical Performance: The RCX120N25 provides higher voltage and current ratings than the IRF630NL, making it suitable for applications where the original part operates below its maximum ratings. The substitute's 250V Vdss and 12A Id ratings provide design margin above the IRF630NL's 200V and 9.3A specifications.

Thermal Considerations: The RCX120N25 specifies 40W (Tc) power dissipation, which is lower than the IRF630NL's 82W (Tc). Applications requiring the full 82W dissipation capability must verify that the substitute's thermal performance is adequate for the specific circuit design.

Package Compatibility: The RCX120N25 uses TO-220FM packaging instead of TO-262. PCB layout modifications are required for physical substitution. Both packages are Through Hole types and are mechanically compatible with standard component mounting practices.

Temperature Range: The RCX120N25 maximum junction temperature is 150°C, compared to the IRF630NL's 175°C. Applications operating near the upper temperature limit must verify that the substitute remains within acceptable thermal margins.

Frequently Asked Questions (FAQ)

Q: Can the RCX120N25 directly replace the IRF630NL without circuit modifications?

A: Electrical substitution is possible because the RCX120N25 meets or exceeds the IRF630NL's voltage, current, and gate drive specifications. However, physical substitution requires PCB layout changes due to different package types (TO-220FM vs. TO-262). The substitute's lower maximum power dissipation (40W vs. 82W at Tc) must be verified for thermal adequacy in the specific application.

Q: What are the key electrical parameters that determine substitution compatibility?

A: The critical parameters are: (1) Drain-to-Source Voltage (Vdss) must be equal to or greater than the original; (2) Continuous Drain Current (Id) must be equal to or greater than the original; (3) Gate drive voltage must be compatible (both use 10V); (4) On-state resistance (Rds On) should not significantly degrade circuit performance; (5) Maximum gate voltage (Vgs Max) must accommodate the application's gate drive circuit.

Q: Why is the RCX120N25 rated for lower power dissipation than the IRF630NL?

A: Power dissipation ratings depend on package thermal characteristics and junction-to-case thermal resistance. The TO-220FM package used by the RCX120N25 has different thermal properties than the TO-262 package used by the IRF630NL. The lower Tc rating does not necessarily indicate inferior performance; it reflects the thermal design of the specific package. Circuit thermal analysis is required to confirm adequacy.

Q: Are there package considerations for substitution?

A: Yes. The IRF630NL uses TO-262-3 (I2PAK) packaging, while the RCX120N25 uses TO-220FM packaging. Both are Through Hole types, but they have different pin configurations and physical dimensions. PCB redesign is necessary for physical substitution. Pin-to-pin electrical compatibility must be verified against the specific application schematic.

Q: What is the significance of the RoHS compliance difference?

A: The IRF630NL is RoHS non-compliant, while the RCX120N25 is RoHS3 compliant. RoHS compliance is mandatory for products sold in the European Union and is increasingly required by customers worldwide. For new designs or applications subject to RoHS regulations, the RCX120N25 is the appropriate selection.

Q: How do the operating temperature ranges compare?

A: The IRF630NL operates from -55°C to 175°C (TJ), while the RCX120N25 operates up to 150°C (TJ). Applications requiring operation above 150°C junction temperature cannot use the RCX120N25. For applications within the 150°C limit, the substitute is suitable.

Q: Is the higher voltage rating of the RCX120N25 (250V vs. 200V) a concern?

A: No. A higher voltage rating provides design margin and does not create compatibility issues. The substitute can safely operate in circuits designed for 200V maximum voltage. The higher rating ensures reliability in applications with voltage transients or margin requirements.

Q: What inventory status should be considered for component selection?

A: The IRF630NL has 2495 pieces in stock (Obsolete status), while the RCX120N25 has 3900 pieces in stock (Active status). For long-term supply chain reliability, the RCX120N25 is preferred because it is in active production and will continue to be available for future orders.